Positron AI Secures $875M Series C Funding for Next-Gen Silicon Tapeout and System Production Ramp

Positron AI, an AI inference hardware company, has announced a $875 million Series C financing at a post-money valuation of $5 billion. The round was co-led by NEA, Atreides Management, Valor Equity Partners, Andra Capital, Dylan Patel's SemiAnalysis Capital, and Jim Clark. The funding will support the Asimov silicon tapeout and Titan system production ramp, following Positron's 50-plus-rack Atlas deployment at Oracle Cloud Infrastructure. Positron's focus is on building memory-first inference systems designed to meet the increasing demand for AI models.

The financing will fully fund the tapeout of Asimov, Positron's next-generation silicon, the bring-up of a 2 MW+ engineering data center and emulation platform, and the production ramp of Titan, Positron's next-generation inference system, including LPDDR5X supply commitments, production capacity, system integration, and go-to-market expansion. Asimov tapes out on TSMC N3P at the end of 2026, with production in the second half of 2027, and pairs Positron's compute architecture with 288 GB to 2,304 GB of memory per chip.

Titan combines four to eight Asimov chips into a single system, designed to serve models beyond 16 trillion parameters and context windows beyond 10 million tokens in a single node, scaling to thousands of nodes. The financing was raised in two tranches, with the Series C, $375 million at a $3.5 billion pre-money valuation, co-led by NEA, Andra Capital, Atreides Management, Valor Equity Partners, and Dylan Patel's SemiAnalysis Capital. The Series C-1, up to $500 million, was led by NEA and Jim Clark. The round will see Forest Baskett of NEA, Gavin Baker of Atreides Management, Thomas Jermoluk from Jim Clark Office, and Dylan Patel join Positron's board of directors.